What device may be used to ensure that air is flowing through a duct before an electric strip heater is energized?
What will be an ideal response?
sail switch
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____________________ joints are mechanical devices arranged to permit the movement of connected piping.
Fill in the blank(s) with the appropriate word(s).
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Muscovy eggs require _____ days of incubation
a. 30 c. 21 b. 28 d. 35
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When banding fertilizer, the material should be placed about 1 or 2 cm below the seed being planted
Indicate whether the statement is true or false
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The bearings of shop equipment ________
A) Are often sealed and cannot be lubricated B) Should be lubricated regularly if possible C) Both A and B D) Neither A nor B
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